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# can anyone help me to answer add math form 4 project?differentiation?

The Muhibbah Company is a manufacturer of cylindracal aluminium tins.The manager plans to reduce the cost of production.The production cost is proportional to the area of the aluminium sheet used.The volume that eachtin can hold is 1000cm cube(1 litre)1.Determine the value of h,r and hence calculate the ratio h/r when the total surface area of each tin is minimum.here,h cm denotes the height and r cm the radius of the tin.2.The top and bottom pieces of the tin of height h cm are cut from square-shaped aluminium sheets.determine the value for r,h and hence calculate the ratio h/r so that the total area of the aluminium sheets used for making the tin is minimum.lt;refer to your own diagramgt;3.investigate cases where the top and bottom surfaces are cut from:i)equilateral triangleii)regular hexagonFind the ratio of h/r for each case.